XYZ Racing Gravel Rally Coilovers — Scion XB bB 4WD 2003-2007

The Scion XB bB’s boxy, short-wheelbase body sits its centre of gravity higher than a standard hatchback, and on loose gravel that height turns into pitch and roll the moment the surface breaks up. Put the 4WD SC04 chassis over a rutted rally stage and the extra driveline mass hanging over the front axle only adds to the load the dampers have to control through every compression.

XYZ Racing’s Gravel Rally coilover is built specifically for that kind of surface, not for a smooth circuit or a fast road. It is the spec fitted to cars that spend their weekends sliding through forest stages and rutted farm tracks, where wheel travel and shock durability matter more than outright stiffness.

What this coilover does for your 2003-2007 Scion XB bB 4WD

Fit this kit to your XB bB and the first thing you notice is how much more travel the suspension has to work with before it runs out of stroke. The long-stroke damper and matching long spring soak up the repeated hits of a gravel stage – washboard sections, sudden compressions, mid-corner ruts – without the harsh top-out or bottom-out you get from a road-biased setup pushed past its limit. On the 4WD SC04, that extra control keeps all four contact patches loaded more evenly through a stage, which matters when the front axle is already carrying driveline weight the 2WD car doesn’t have. The inverted tube layout also keeps the working parts higher off the ground, away from the flying stones and mud a gravel stage throws up at the underside of the car.

About the Gravel Rally coilover

XYZ Racing developed the Gravel Rally line specifically for rally and rallycross use, where the road surface is about as hostile as motorsport gets. The inverted tube construction was chosen because it copes with a wider spread of surfaces than a standard damper – sand, snow and silt all load a shock differently, and the design is built to keep working through all three rather than being optimised for one. Stroke length and spring length are both extended over a road or track coilover, giving the damper room to absorb chassis vibration and the repeated hard hits of a fast, bumpy stage without running out of travel. That same long-travel setup is what lets the car carry the G-forces generated mid-corner without the suspension binding or the chassis losing composure. XYZ Racing’s own rally team validated every spring rate in the range in actual competition, not on a bench, so the settings reflect what holds up over a full stage rather than what looks good on paper.

Fitment for the Scion XB Bb (2003-2007)

This kit is built to the SC04 chassis code, covering the 4WD Scion XB bB produced between 2003 and 2007. Confirm your build date falls inside that window and that your car is the four-wheel-drive variant before ordering, as the damper geometry is specific to that driveline layout rather than the 2WD car.

What buyers also search for

• Scion XB bB gravel rally suspension setup for stage use
• Scion XB bB 4WD coilover damping built for sand, snow and silt
• SC04 rally-spec suspension travel for washboard and rutted tracks
• Scion XB bB rallycross coilover kit for the 2003-2007 4WD chassis

Configure the spec for your SC04 bB below and get the Gravel Rally kit set up for your stage car.